*The Birds Aren't Singing*
Miners once took canaries down the mines to detect dangerous gases, if the birds stopped singing or even died it was a sure sign that there was a critical level of gas and they would make their way to the surface. Globally we are producing excessive amounts of CO2 which is choking the planet contributing to global warming, are the birds going to warn us of our impending fate?
*Get it on a sticker!*